David A. Harding [NO176]Wrote an article for the Bitcoin Wiki with a list of techniques for reducing transaction fees. It's aimed at wallet devs and organizations (rather than individual users) since many of these techniques require software support
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David A. Harding [NO176]@ziggamon @0xB10C 20th percentile is arbitrary, but I worry that looking at the lowest-feerate txes in the block would be inaccurate due to CPFP and knapsack-solving edge cases, see en.bitcoin.it/wiki/Transacti… for details. I think those cases sometimes exceed 10% of a block but rarely get to 20%.
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Note: This was originallypublishedto the Bitcoin Development mailing list.

David A. Harding [NO176]@LukeDashjr@theinstagibbs Then people are going to commit data using pubkeys, either faux-pubkeys in P2PK/bare-multisig outputs or pay-to-contract pubkeys in witnesses. @petertodd made a persuasive case that censoring proof-of-publication is effectively unlikely on Bitcoin
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David A. Harding [NO176]@nopara73 Perhaps because people pay for Coinbase and Blockchain.info (the later through attention-sucking ads), but nobody pays for Bitcoin Core. Also, CB and BC.i are proprietary---so all we can do is criticize---but with Core anyone with the skills can contribute.
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David A. Harding [NO176]@nopara73 Great post! Theymos had the same basic idea (and I think there are even earlier examples on BitcoinTalk), but I like your extension of adding it to existing services.
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